Shut the tab up!

{
    "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
    "manifest_version": 3,
    "name": "__MSG_extName__",
    "short_name": "__MSG_extName__",
    "description": "__MSG_extDescription__",
    "version": "1.3.2",
    "default_locale": "en",
    "author": "WebIT-Service",
    "minimum_chrome_version": "88",
    "icons": {
        "16": "assets\/mute-16x16.png",
        "32": "assets\/mute-32x32.png",
        "48": "assets\/mute-48x48.png",
        "128": "assets\/mute-128x128.png"
    },
    "background": {
        "service_worker": "background.js"
    },
    "permissions": [
        "storage"
    ],
    "action": {
        "default_title": "__MSG_actionTitle__",
        "default_icon": "assets\/mute-16x16.png",
        "default_popup": "options.html"
    },
    "options_ui": {
        "page": "options.html",
        "open_in_tab": false
    },
    "commands": {
        "toggle-muting": {
            "suggested_key": {
                "default": "Alt+M"
            },
            "description": "__MSG_toggleOnOff__"
        }
    }
}